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Hugh Campbell <hcampbel@webfront.net.au> writes
Hi listmembers,
Does anybody know where I can get information on this type of technology and
how or if it could be used to remotely sense soil moisture from afar (say
several metres above the surface). I understand it is used in measuring
water stress in a plant canopy but what if there are no plants?
All contributions gratefully acknowledged.
[Please copy to this discussion list]
[Bruce comments: Hugh Campbell has opened another can of worms here - IR
surface temperature sensing has been used to detect water stress in
vegetation, and there are IR based methods of determining SWC, but I don't
know if this can be done remotely...
The sowacs IR sensors section is extremely sparse - and hopeully will
benefit from the discussion this will generate; all I have there are two
refrences to the literature:
Myhre, B.E. Shih, S.F. Using Infrared Thermometry to
Estimate Soil Water
Content for a Sandy Soil Transactions of the ASAE. SEP
01 1990 v 33 n 5 Page:1479
Scott, Michael NIR for Non-contact Measurement of
Moisture and Protein
Content. Sensor review. 1991 v 11 n 4 Page:20 ]
Hugh Campbell
BE(Agr), CPAg, CID AD/M2107, JP
Land and Water Management Planning and Services P/L
(Irrigation Design, Auditing, Control and Expert witnessing)
11 Helenor Crescent
NARRANDERA NSW 2700 AUSTRALIA
ph/fax 61 2 6959 2552
mobile 015 955 192
e-mail <hcampbel@webfront.net.au>